Transmission mechanism



F. E. NORTHROP ET AL June 3 192 1.

TRANSMISSION MECHANISM File F 2 192] 2 Sheets-Sheet 1 June 3,, 1924. 1,496,208 F. E. NORTHROP- ET AL TRANSMISSION MECHANISM 'Filed"F 25. 1921 2 Sheets-Sheet 2 Patented June 3, 1924.

I OFFICE.

FRANK E. I DTOBTHROP, ARTHUR KALLINICE, ITARVEY SPAUNBURG, AND JOHN T. CI-IIDSEY, 013 BRTSTOL, CONNECTICUT, ASSIGNOB-S TO THE ROOT COMPANY, OF BRISTOL, CONNECTICUT, A CORPORATION OF CONNECTICUT.

TRANSMISSION MECHANISM.

Application filed. February 23, 1921. Serial No. 447,077.

To all whom it may concern:

Be it known that we, FRANK E. NORTHROP, ARTHUR KALLrNroi-r, HARVEY SPAUNBURG, and JOHN T. Cr-rrnsnr, all citizens of the United States, residing at Bristol, Connecticut, have invented certain new and useful Improvements in Transmission Mechanism, of which the following is a clear, full, and exact description.

This invention relates to a counting mechanism for registering the rotations of a shaft and more particularly to a transmission or driving mechanism for transmitparts hereinafter described and particularly pointed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the art.

.The invention will be clearly understood from the accompanying drawings illustrating the invention in its preferred form and the following detailed description of the construction therein shown.

.In the drawings, Fig. 1 is a view in side elevation illustrating a counting mechanism embodying the invention applied to a loom.

Fig. 2 is a view in vertical section of a portion of the mechanismshown in Fig. 1.

. Fig. 3'is an underside plan view 'of certain of the parts shown in Fig. 2.

Fig. 4 is a detail sectional view taken substantially on the line 44 of Fig.3, and

Fig. 5 is a detail view of one of the transmission gears taken in the direction. of the axis thereof.

The counting mechanism embodying. the

preferred form of the invention as illustrated in the drawing is applied to a loom to transmit rotary motion from one of the principal shafts of the loom to a counting device so that'the rotations of the shaft are registered by the counting device. In the drawings the shaft of the loom to which the counting mechanism is applied is indicated at 2 and the counting device at 4. The casingof the counting device and a shaft from which certain of the parts of the counting device are driven only are shown since a detailed illustration and description of this deviceis unnecessary to give a clear understanding of the invention.

The counting device comprises a rotary driven shaft 6 which is driven from an intermediate or counter-shaft 8 connected at its upper end with the shaft 6 by means of a universal joint 10. The lower end of the counter-shaft 8 .is connected by a universal joint 12 with a short shaft 14 journaled in and wholly supported by a casing or housing 16, the axis of which shaft preferably lies in a plane substantially perpendicular to the axis of the loom shaft 2. The shaft 14 carries a gear 15 consisting in the preferred embodiment of the invention of a worm wheel which meshes with'a gear 18 consisting of a worm secured to the loom shaft 2 to rotate with the shaft. The housing 16 in the present construction is supported at one end upon the central portion or hub of the gear 18 and the other end of the housing-16 is supported/by means of a rod 20 which holds the housing from turning aboutthe axis of the loom shaft. The rod 20 is secured at its upper end to the frame and at its lower end to the housing preferably so that the housing may be adjusted angularly about the axis of the loom shaft to locate the same in the proper position. As shown, the rod 20 passes at its lower end through a laterally extending portion of the housing and is held adjustably therein by means of nuts; 22 threaded on the rod. The upper end of the rod 20 passes through an arm on a bracket 24 secured to the frame of the machine and is held adjustably in a bracket by means of nuts 2.6 also threaded on the rod. The housing 16 is thus adjustably supported in a simple and efficient manner.

To enable the gear 18 and the housing- 16 to be readily applied to the shaft of a loom or othermachine, the gear and the housing are each made in two separable parts, the gear being divided on a plane containing the axis of the shaft receiving opening therein and the housing also being divided upon a corresponding plane. The gear 18 is preferably made by forming the same with diametrical recesses 28 and breaking the gear in line with the recesses, as shown clearly in Fig. 2. The two parts of the gear are secured together by means. of screws 30 and the gear is secured to rotate with the loom shaft by means of a driving lug 31 arranged to engage in a suitable recess formed in the shaft.

The horizontal line through the center of the sl1aftreceiving opening in the gear 18 f in Fig. 2 indicates the plane of division of the two parts of the casing 16 which are held securely together by means of bolts 32. The shaft 14 is journaled in the upper part of the casing, and the gear 15 is enclosed by the casing when the parts thereof are assembled, as shown in this figure. The casing 16 is formed with a circumferential recess 33 in the interior thereof in which the toothed portion of the gear 18 is located and the portions of the casing at the opposite sides of the recess have a bearing on the central portions or hub of the gear, as clearly shown in Fig. 4. The casing is held from axial movement with relation to the gear by the engagement of interior shoulders on the casing with the shoulders at the junctures of the hub of the gear and toothed portion thereof as shown in this figure.

The counting mechanism above described is comparatively simple in construction, is inexpensive to manufacture and may be applied to practically any loom shaft without making any substantial change .in the structure of the machine. .The shaft 2 may constitute an integral extension on the loom shaft or it may be constructed as a separate element formed with a flange and secured to the loom shaft by bolts extending through said flange. The upper part of the casing 16 is provided with an oil hole (not shown) and the recess 33 in the lower part of the casing forms a receptacle in which oil is retained to thoroughly lubricate the parts. The casing 16 efficiently protects the parts enclosed thereby from dust and dirt, and also forms a guard for these parts preventing the clothing of the operator or other articles from becoming caught therein. The provision of the universal joints and 12 between the shaft 14 and the sh aft 6 make it unnecessary to line up accurately the shaft 14 with the shaft 6. In fact, if itis necessary or desirable, the casing 16 may be adjusted angularly about the axis of the shaft to which the mechanism is applied so that the shaft 14 lies at a considerable angle to the shaft 6 or the parts may be arranged so that the shaft 14 is offset from the shaft 6, and the transmission mechanism will still operate efficienu to transmit motion to the latter shaft. The casing 16 constitutes a hanger in which the shaft 14 and the gear are supported. If it is desirable, to promote the easy running of the transmission mechanism, the nuts 22 may be adjusted on the rod so as to allow the casing 16 to have a certain amount of play between the same.

It is to be understood that the invention is not limited to the particular construction and arrangement of parts of the illustrated embodiment of the invention, but that the invention may be embodied in other forms within the scope of the claims.

Having explained the nature and object of the invention, and having specifically described a mechanism embodying the invention in its preferred form, what is claimed is:

1. A counting mechanism having, in combination a bracket constructed for attachment to one of the side members of a loom frame, a counting device mounted on the bracket and comprising a slow speed shaft from which the registering mechanism of the counting device is driven, a driving shaft the rotations of which are to be registered, a high speed gear secured to the drivingshaft,a hanger supported at one end by the driving shaft, a slow speed shaft journaled in and wholly supported by the hanger, a slow speed gear secured to the latter shaft and meshing with the first gear, connections between the shaft of the counting device and the latter slow speed shaft for rotating the shaft of the counting device at slow speed to actuate the registering mechanism of. the counting device, and means connecting the bracket with the other end of the hanger for supporting the latter end of the hanger to hold the same from turning about the axis of the driving shaft.

2. A counting mechanism having in combination a bracket constructed for attachment to one of the side members of a loom frame, a counting device mounted 'on the bracket and comprising a slow speed shaft from which the registering mechanism of the counting device is driven, a driving shaft the rotations of which are to be registered, a worm secured to the driving shaft, a hanger supported at one end by the shaft, a slow speed shaft journaled in and wholly supported by the hanger. a worm wheel secured to the latter shaft and meshing with the worm, connections between the shaft of the counting device and the slow speed shaft, for rotating the shaft of the counting device at slow speed to actuate the registering mechanism of the counting device, and a rod adjustably connecting the bracket with the other end of the hanger for supporting the latter end of the hanger to hold the same from turning about the driving shaft.

8. In a mechanism of the character described, the combination of a loom frame, a 100m shaft projecting at one end beyond the 100111 frame, a bracket secured to the loom speed reducing gearing mounted Within the frame, a rotation counter mounted on the casing.

bracket, a casing supported at one end on Signed at Bristol, Connecticut, this 14 the projecting end of the 100m shaft, a rod day of February, 1921.

connected respectively with the bracket and JOHN T. CHIDSEY. casing for supporting the other end of the ARTHUR KALLINICH. casing, and driving connections between the HARVEY SPAUNBURG.

loom shaft and rotation counter comprising FRANK E. N ORTHLROP. 

